What’s Vulnerable › Vulnerabilities
CVE-2025-40601
- Severity: high (CVSS 7.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.9% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2025-11-20 · updated 2026-10-18
- Weakness: CWE-121
Description
A Stack-based buffer overflow vulnerability in the SonicOS SSLVPN service allows a remote unauthenticated attacker to cause Denial of Service (DoS), which could cause an impacted firewall to crash.
Affected products
- SonicWall SonicOS: from 7.1.1-7040 before 7.3.1-7013; before 8.0.3-8011 — fixed in 7.3.1-7013, 8.0.3-8011
How to fix
Upgrade to a fixed version: SonicWall SonicOS 7.3.1-7013, 8.0.3-8011. Check the vendor advisory for mitigations.
References
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